18.98¢
per kWh, 2025
[ Adams-Columbia Electric Coop / WI ]
Adams-Columbia Electric Coop electricity rates in Wisconsin
NO RATE CASE ON FILE · DATA 2025
change in average rate, 2024→2025
+7.7%
vs 2024
36,159
residential customers
+19.1%
since 2020
What your bill becomes
Bill today
No change on file
Difference / month · / year
Estimated at Adams-Columbia Electric Coop's average effective residential rate (18.98¢/kWh, EIA, all charges included). Your tariff, fees and taxes differ.
Rate history 2015–2025
| Year | ¢/kWh | Change | Customers |
|---|---|---|---|
| 2015 | 15.72¢ | — | 33,718 |
| 2016 | 15.97¢ | +1.6% | 33,915 |
| 2017 | 16.47¢ | +3.1% | 34,138 |
| 2018 | 16.02¢ | −2.7% | 34,207 |
| 2019 | 16.19¢ | +1.1% | 34,323 |
| 2020 | 15.94¢ | −1.5% | 34,633 |
| 2021 | 15.82¢ | −0.8% | 35,002 |
| 2022 | 17.19¢ | +8.7% | 35,333 |
| 2023 | 17.43¢ | +1.4% | 35,649 |
| 2024 | 17.63¢ | +1.1% | 35,910 |
| 2025 | 18.98¢ | +7.7% | 36,159 |
How this compares
18.08¢
Wisconsin average, 2025
+5.0%
Adams-Columbia Electric Coop vs WI 2025 average
+10.2%
vs US 2025 average
#3
priciest in WI
Serves 12 counties in Wisconsin: Adams, Columbia, Dane, Dodge, Green Lake, Jefferson, Marquette, Portage, Sauk, Waupaca, Waushara, Wood. 47 ZIP codes.
Questions
Is Adams-Columbia Electric Coop raising rates in 2026?
No rate case for Adams-Columbia Electric Coop is on file with the Public Service Commission of Wisconsin in our tracker. Its average residential rate moved +7.7% from 2024 to 2025. We check the commission docket monthly.
What does Adams-Columbia Electric Coop charge per kWh?
Adams-Columbia Electric Coop's average effective residential rate was 18.98¢ per kWh in 2025 (EIA-861, revenue divided by sales, all charges included). Wisconsin's 2025 average was 18.08¢.
How much have Adams-Columbia Electric Coop rates gone up in five years?
+19.1% between 2020 and 2025, against +31.1% for Wisconsin as a whole over the latest five-year window.
How many customers does Adams-Columbia Electric Coop have in Wisconsin?
36,159 residential customers in 2025, across 12 counties including Adams, Columbia, Dane, according to the EIA-861 survey.
Where do these numbers come from?
Rates and customer counts are from the US Energy Information Administration's annual EIA-861 survey; rate-case facts are from the Public Service Commission of Wisconsin docket linked on this page. Nothing here is a utility bill; use it to understand the direction and size of changes.
Sources
- EIA-861 Sales to Ultimate Customers, 2015–2025 (released 2026-10-07)
- EIA-861M monthly state averages through Jul 2026
- NREL utility-by-ZIP lookup (2024)